talk from president obama this morning on the growing crisis in syria. And the reported use of chemical weapons there, by the people's own government. Jim avila live at the white house with the very latest. Good morning to you, jim. Reporter: Good morning, josh. The president's national security team met at the white house for more than three hours on the latest syrian events. And on cnn, the president said the latest attack on syria, which may have included chemical weapons, requires immediate american attention. What we've seen indicates that this is clearly a big event. Of grave concern. We're already in communications with the entire international community. We're moving through the u.N. To try to prompt better action from them. And we've called on the syrian government to allow the investigation of the site because u.N. Inspectors are on the ground right now. We don't expect cooperation, gui given their past history. There is no doubt, when you start seeing chemical weapons used on a large scale, and again, we're still gathering information about this particular event. But it is very troublesome. And that starts getting to some core national interests that the united states has, both in terms of us making sure that weapons of mass destruction are not proliferating, as well as needing to protect our allies, our bases, in the region. Reporter: The president has told syria it must allow the u.N. -- It must cooperate with the u.N. In the investigation of the chemical weapons attack. And the president says he is considering a wide range of options. Those options could include that we have cruise missiles available from ships in the mediterranean and also combat aircraft, which is in the middle east. But the president says he is being very cautious. The american people pay him, he says, to think.

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